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Home >> Porsche >> 2017 >> Macan S >> Repair and Diagnosis >> External Pages >> Different car >> Section 768 (44 - Wheels, Tires, Suspension Alignment) >> WM 444019 Mounting tyres (removing and installing tyres) >> Removing/mounting tyres (removing and installing tyres) >> Removing tyres

Removing tyres

WARNING: This page is about a different car, the 2016 Porsche Macan and 2015 Porsche Macan. However, it is still accessible from the selected car via links, so may be relevant.

For correct tyre removal/mounting, follow the instructions provided for the tyre removal/mounting machine.

See Requirements/information on removing/mounting tyres!

  1. Fit and clamp a clean disc wheel on the tyre removal/mounting machine.

    Check that the tyre is seated securely and without damage (as described in the instructions provided for the tyre removal/mounting machine).

  2. Unscrew the valve insert and release the air so that the tyre is depressurized.
  3. Set the tyre bead press-off tool (in accordance with the tyre size).
    G12834700Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    1. 3.1. Set the tyre bead press-off tool to the inch graduation (rough setting in accordance with the tyre size).
    2. 3.2. Then adjust the setting precisely (the press-off roller must not touch the rim when positioned on the tyre). If this is not the case, the rim flange may be damaged by the press-off rollers.
  4. Loosen the lower and upper tyre bead (press the tyre off the rim).
    1. 4.1. The wheel must be turned anti-clockwise (anti-clockwise rotation of the mounting table) when pressing the tyre off the rim (loosening the tyre bead). Otherwise, excessive forces occur on the fastening bolts of the machine which can break the bolts.

      First press off the lower tyre bead and then the upper tyre bead (to ensure that the wheel remains seated securely on the machine).

      Coat the tyre beads with mounting paste even at this stage of the procedure to make it easier to press the tyre bead off.

    2. 4.2. Loosen the two bead press-off tools again (by moving them back to their original position).
  5. Before removing the tyre, coat the tyre beads with mounting paste again if necessary to facilitate removal.

    Information 

    • Always use a bead holding-down device for removing the upper tyre bead (second tyre bead)  .
    • Use the Wulstboy bead holding-down device (type 2 in section 6.2 below) for tyre/wheel combinations that are difficult to remove  .
  6. Removal 
    1. 6.1. Removing upper tyre bead - type 1 

      Valve/wheel electronics unit at 12 o'clock position.

      Fit the mounting head on the rim flange.

      The mounting lever (with plastic protection) is pushed into the deep bed underneath the upper tyre bead, and then guided over the mounting shoe and pushed down.

      Lift the tyre bead out of the rim bed by turning the wheel clockwise. Check the following while doing this:

      • Check that the bead lip is facing outwards and is fully visible. Otherwise, the tyre bead can become jammed and be damaged irreparably.
      • The mounting lever must be the same distance from the inside of the tyre and the valve during the entire removal procedure.
      • Constantly check that the plastic protection (on the mounting lever) is positioned correctly in order to protect the rim.
      • The lower (second) tyre bead must be in the deep bed during removal.
      • The tyre bead must not be pressing against the wheel electronics unit.
    2. 6.2. Removing upper tyre bead using bead holding-down device type 2 = Wulstboy 

      Valve/wheel electronics unit at approx. 12 o'clock position.

      Use the upper plastic press-off roller on the mounting machine to press the upper tyre bead approx. 4 to 5 cm below the rim flange (max. 5 cm/the belt edge of the tyre must not be deformed by the plastic press-off roller). This makes space for the bead holding-down device blocks.

      Fit the bead holding-down device (Wulstboy) into the middle of the "wheel/rotary plate". Move the arm of the bead holding-down device to the 1 o'clock position.

      Turn the wheel slowly in a clockwise direction (clockwise rotation) and insert the blocks of the bead holding-down device.

      Remove the upper press-off roller on the mounting machine from the tyre and fit the mounting head on the rim flange. Insert the mounting lever (with plastic protection) -1-  and lever the upper tyre bead over the mounting head.

      Continue turning the disc wheel slowly (clockwise rotation) until the bead holding-down device (Wulstboy) is just in front of the mounting head. Remove the Wulstboy using holding-down device 9539. Continue turning the disc wheel slowly (clockwise rotation) until the upper bead is completely removed.

      G12834701Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  7. Removing lower tyre bead: 

    Valve/wheel electronics unit at 12 o'clock position.

    Pull the tyre upwards and push it into the rim bed underneath the second tyre bead using the mounting lever (plastic protection). Make sure that the valve/wheel electronics unit is not damaged.

    Check the position of the mounting lever. The mounting lever must be the same distance from the inside of the tyre and the valve during the entire removal procedure. Constantly check that the plastic protection (on the mounting lever) is positioned correctly in order to protect the rim.

    Turn the wheel slowly clockwise until the tyre is removed.

    G12834702Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  8. Set the mounting lever and tyre aside (in a safe/clean place).

    Detach the disc wheel from the machine, remove it and lay it carefully aside (store in a safe place).

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